/Engine/Source/Runtime/Engine/Classes/Components/SceneComponent.h
Find the world-space location and rotation of the given named socket. If the socket is not found, then it returns the component's location and rotation in world space.
whether or not the socket was found
void GetSocketWorldLocationAndRotation ( [FName](API\Runtime\Core\UObject\FName) InSocketName, FVector & OutLocation, FRotator & OutRotation ) const